Improvement in seal-locks



GUSTAVEULMANN, `or nIVRY-sunsEINE TO" CHARLES' RHODES GOODWIN, vSAME PLACE.

\ Letters Patent o. 100,568, date-cl March 8, 1870.

IMPnovnnmN'r 1N SEAL-Locks.

The Schedulerxefen'ed to in' these Lettera Patent aadmaking part of the Same.

To all 'whom 'itmay concerns l Be it known that I, Gns'rAv'E ULMANN, f-Ivry-sur- Seine, inthe Empireof France, have invented anew andusefullmproveinent in Seal-Locks and I doherebydeclarev that ltheffollwing is a full, clear, pand exact description 'thereon-which will enable others skilled in the artto make anduse the same, reference being had tothe' aceompanyngfdrawings forming part of this specification.\

My invention relatestoseal-locks, and consists in the combination of parts as hereinafter described.

Figure 1 is a side elevation of my improved lock, showing'tthe sealeholding plate; 1 f Figur 2 Vis `an elevation of the same o'n the left ace; i

'Fignre is anelevation with he. seal-holding plate removed,v and also shown-in elevation;

Figure 4V is a transverse section taken on the line 1 2, lig. 2;` 1 `Figure '5 is aside platedetachedrl i Figure 6 is :a: sectional elevation showing the two parts iasdivided onthe central line ofii g.2;

Figure 7 represents the perforated bolt or hasp of the .inail-bag l-or other thing to :be locked e Figures'S'and'Qaresectionson the line 3 4, iig. 1, with theseal in position,-`

Figure 10 is face vew'ot the `diskfc preventing the escape of the locking-pin.;

yelevation with the sealholding shownon 10; H

hignre12 is an elevation of the same; .Figures 13,14, and 1 5 areviews of the locking-pin;

Figure V16 is-a `plan and edge view of the seal.

a. isthe' lockngfbolt, having an oval end and a recess in the side, `wherein a springlatch, a', is secured, with ahead projecting laterally from the slot near the rounded end ofthe piu, and shapedso that when this end is forcedl into a hole the catchwill spring back into the recess.

b b' represent the lock-case?, consisting of a hollow block" of metal of the form shown,` or any other preferred form, and" preferably made of two parts, for convenience of making the hollow spaces f and S. They may be secured together as shown inthe figs. 2 and 5`, by a screwor rivet, c, anda doivel-pin, d, or by other suitable means.

The recess f opens out atone side, as shownin iig.

2, and isforthe reception' of` the bolt or hasp (Eg. 7 of the mail-bag or other .thing to be locked, the said bolt having a hole, g,through theend for thepassage of the boltfaf. n represents a hole passing through the ease from end to end, and having an annular enlargement, o, forming a shoulder for the engagement of the springeatcha. W l. t -J'` is-the seal-holding plate, having aperf'orated pro- "Figure 11 is aface view of the `side opposite that` jecting stud, l, and arranged with an annular groove, j', in the face, which rits against the side b' ofthe case, for thereception' of the annular projection h thereon. It has a large circular opening, jz, within this groove, traversed vby a bar, j, having a central perforation, It.

. mis a mortise in the case for the reception of the studi when the plate J is placed ,in position, the .hole

p therein coinciding with the hole n of the case." f

S is a circular recess in the enlarged end of thef'cas'e, the axis of which coincides with the axis of the annular ring or projection h. This recess intersects the hole n, and has av circularopening, c, through the part b ofthe pase leading to it, and coinciding with its axis. Thereris also a small axial hole through'- the part b of the case leading 4to this recess. l

tis a thindisk of metal itted to Work in this "ecess, andhas a srnoothcircular stud,:u,tted"'t v he hole v, also a screw-threadedstud, x, on the opposite' side, l'tted to a screw-threaded hole in the part b of thecase.

z is a small perforating stud projecting from theend ofst-ud x. Y

TheV stud u has a square or other angular socket, a,intheend. 'r Y. 1

i represents the soft metal, paper, 'or other seals, made inthe form of thin disks.

When the disk t rests on the bottom of the' recess S, as shown in fig. 8, the stud z will not project from the face of the cup' or recess h' of ,the part bnf the case, and the said-disk will stand in th'e intersection of the hole n. It is adjusted to this position when the lock is "to be locked, which is done the bolt, iig. 7, in thereeess f, placing a seal, fi, in the recess h", placing the' plate J over-the same, and inserting Athe bolt a.,- as indicated by the arrow nia-6,- when the spring-catch a. will prevent" its withdrawal, and the disk t will prevent its advance.

To unlock it,- a key is placed 'in thel socket a3, and the disk is turned `to screw it away from before the hole n, tofadmit the escape of the bolt a, Which-may then be pushed forward and drawn. out at r.

This movement of the disk t forces the'studz through the seal, punching and disiignring it `so that it will show that the look has been opened. l v

The seals being inthe possession of those only who have authority to open the locks, they'cannot be again lockedso as to deceive lthe authorized persons.

j Having thus described my invention,

I claim as new, and desire -to' secure byLetters Patent- `The combination with the case bIbQVarranged substantially as described,of the spring-bolt a, seal-holdingplatelJ, disk t, and perforating stud z, all substantially as speciiied.

G. UILIMANN.` Witnesses:

F. Onoor'r,` C. ANos.

,NEAR PARIS, FRANCE, Assi-suon j by inserting.. 

